General Piano Knowledge

Today, I studied Yamaha's Duplex Scaling technology. This is what I learned:

With modern audio components, tonal character can be changed by simply turning
a knob. Pianos were developed long before electronics, and must produce the sounds naturally.
Early in the development of pianos, the tone was weak and somewhat dull. Originally,
any portion of a string not struck by the hammer was muted by the insertion of felt strips.
Improvement came with the advent of the duplex scale, located in the upper two octaves of
the keyboard. Pianos can now be designed with the treble strings divided into three sections.

1. The speaking length struck by the hammer.
2. The two other sections not struck by the hammer, but designed to be free
to vibrate to enhance the upper harmonic structure of the note.

Call me at Natural Piano Center so we can discuss this subject a bit further...